511438364 has 12 divisors (see below), whose sum is σ = 905801064. Its totient is φ = 252638064.

The previous prime is 511438331. The next prime is 511438397. The reversal of 511438364 is 463834115.

It is an interprime number because it is at equal distance from previous prime (511438331) and next prime (511438397).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 769907 + ... + 770570.

It is an arithmetic number, because the mean of its divisors is an integer number (75483422).

Almost surely, 2^511438364 is an apocalyptic number.

It is an amenable number.

511438364 is a deficient number, since it is larger than the sum of its proper divisors (394362700).

511438364 is a wasteful number, since it uses less digits than its factorization.

511438364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1540564 (or 1540562 counting only the distinct ones).

The product of its digits is 34560, while the sum is 35.

The square root of 511438364 is about 22615.0030731813. The cubic root of 511438364 is about 799.7073742257.

The spelling of 511438364 in words is "five hundred eleven million, four hundred thirty-eight thousand, three hundred sixty-four".